A) evolution B) differentiation C) heredity D) immunity
A) nutritional habits of the organism B) environment of the organism C) type and order of amino acids D) availability of starch molecules
A) cloning B) gene insertion C) selective breeding D) differentiation
A) reproductive cells composed of molecular bases B) folded chains of bonded glucose molecules C) large molecules that have only one function D) coiled strands of genetic material
A) genetic engineering B) natural selection C) habitat modification D) asexual reproduction
A) The gene for insulin has a different sequence of molecular bases than the gene for testosterone. B) The gene for insulin is turned ON in liver cells, but the gene for testosterone is not C) The gene for insulin is replicated in vacuoles, while the gene for testosterone is replicated in mitochondria D) The gene for insulin is a sequence of five different molecular bases while the gene for testosterone is a sequence of only four differentmolecular bases.
A) only the DNA in certain cells will replicate B) DNA is functional in only 10% of the cells of the body C) different groups of cells containing the DNA may be exposed to different environmental conditions, for example, more food for one but not the other D) some of the DNA in some of the cells will be removed by chemical reactions
A) mitosis → fertilization → meiosis B) fertilization → meiosis → mitosis C) meiosis → fertilization → mitosis D) fertilization → mitosis → meiosis
A) zygote formation B) recombination C) mitotic cell division D) meiotic cell division
A) sorting and recombining of genes in meiosis B) the need to adapt and maintain homeostasis C) overproduction of offspring and competition D) replication and cloning
A) produced more reproductive cells than the male panthers in Texas B) mated only with panthers from Texas C) increased the genetic variability of the panther population in Florida D) solved the reproductive problems of the species by asexual methods
A) increased variation in the type of organelles present in the cell B) a mutation that will affect the synthesis of a certain protein in the cell but not the offspring C) an adaptation that will be passed on to other types of cells in the body D) rapid evolution of the organism in which the cell is found
A) meiosis to produce gametes B) mitosis to produce a larger population C) internal fertilization to produce an embryo D) fusion of eggs and sperm to produce zygotes
A) oranges and other kinds of fruit B) oranges with seeds, only C) oranges without seeds, only D) a majority of oranges with seeds and only a few oranges without seeds
A) It is affected primarily by the eating habits and general health of the mother. B) It is not affected by conditions outside the embryo. C) It is affected primarily by the eating habits and general health of the father. D) It will not be affected by any medication taken by the mother
A) As an embryo develops, various tissues and organs are produced. B) Offspring have a combination of genes from both parents. C) The cells produced by a zygote usually have different genes. D) Replicated chromosomes separate during gamete formation.
A) a dog named Samantha and how she helps her owner overcome obstacles B) a cancer that mutates and becomes elegant and beautiful C) a virus aimed to cure cancer that mutates and causes humans to become monster-like D) the strange effects mannequins can have on people
A) cannot be passed on to offspring B) usually lead to the death of the organism C) lead to more serious mutations in offspring D) are usually beneficial to the organism
A) Each cell has pairs of chromosomes and the cells are usually genetically identical. B) Each cell has pairs of chromosomes and the cells are usually genetically different. C) Each cell has half the normal number of chromosomes and the cells are usually genetically different. D) Each cell has half the normal number of chromosomes and the cells are usually genetically identical.
A) synthesize the same proteins and enzymes as the entire colony is cloned from the original B) express adaptations unlike (different than) those of the other cells C) have a resistance to different antibiotics D) replicate different numbers of genes
A) make carrying a fetus impossible B) decrease her ability to provide essential nutrients to an embryo C) make fertilization impossible D) affect the production of eggs
A) ovary B) placenta C) progesterone D) estrogen
A) are easily digestable B) carry progesterone and fool the mother's body into thinking it is already pregnant C) are made up of nutrient-rich sugars D) provide plenty of testosterone for her well-being
A) engulfing (devouring) and digesting the bacteria whole B) inserting part of their DNA into the bacterial cells C) producing toxins that compete with bacterial toxins D) causing mutations in the bacteria
A) provides immediate immunity to other diseases B) it takes a very long time to begin injecting its viral RNA code into the hosts' cells C) automatically causes AIDS D) hijacks cells into making more viruses leaving the host defenseless to disease |